Alternator Thermal Shock???

New guy here, Ive always tuned into these threads for insights but never asked my own personal troubleshoots. That being said, I found a huge puddle and followed my buddy in his taco through it and tossed up a couple walls. Battery in the truck was recently replaced. light came on shortly after the fun in the mud. After about 2 hours of more offroading it completely died. All ive seen in the forums as that people have replaced the alternator but HAS ANYONE TRIED TO SWAP THE 140 ALT FUSE FIRST and tried kind of a reset on the alternator? Im finding it really hard to believe its completely trashed after one big splash in some mud...